William j



(No Model.)

W. J. RANTON.

BOILER. No. 414,167. Patented Oct. 29, 1889.

- INVENTOR WITNES:

ATTOHNE- UNITED STATES PATENT OFFICE.

"WILLIAM J. RANTON, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE PORTER MANUFACTURING COMPANY, (LIMITED,) OF SAME PLACE.

BOILER.

SPECIFICATION forming part of Letters Patent No. 414,167, dated October 29, 1889. Application filed July 3, 1889. Serial No. 316,433. (No model.)

To all whom it may concern: is preferably of circular-form. The rear pen- Be it known that 1, WILLIAM J. RANTON, of ing of the shell A is closed by the end sheet Syracuse, in the county of Onondaga, in the B, having the opening C for the entrance of State of New York, have invented new and fuel and an opening 0 for the removal of 55 useful Improvements in Boilers, of which the ashes, &c. The fire-box D is of any suitable following, taken in connection with the acsize or shape and is provided with a desirable companying drawings, is a full, clear, and exgrate E. Opening from the fire-box D is the act description. fire flue or passage F, Which is secured to the My invention relates to an improved boiler, forward fiue-sheet G and opens into the smoke- 6o 10 and has for its object the production of asimbox H. Opening into the smoke-box H, and

ple and effective construction which is more having one extremity secured in the fluedurable, effective, and readily assembled than sheet G and the other in the rear plate B, are those previously devised. the fines I, of suitable number to insure the To this end it consists, essentially, in an desired generation of heat. The smoke-box I 5 outer casing or shell having a forward ex- H is preferably riveted to the forward extension provided with a contracted opening, tremity of the forward extension A of the and in a novel construction of the interior shell or casing A.

parts of the boiler, enabling them to be se- This invention is an improvement upon cured together before their placing in posi- Patent No. 325,967, issued September 8, 1885, 20 tion within the outer shell. to G. A. Porter. In boilers of this class the It also consists in forming cleaning-openfire fiueF is necessarily very close to the outer ings in the forward extremity of the boilershell of the extension A, and as the contracshell for the purpose of cleaning the watertion of the water-space renders it difficult to space around the smoke-box; and it furtherhave access thereto for the purpose of clean- 2 5 more consists in the detailed construction and ing, hand-holes or other apertures are formed arrangement of its parts, all as hereinafter in the smoke-box. more particularly described, and pointed out In this class of boilers heretofore conin the claim. structed it is necessary to first rivet the flue- In describing my invention reference is had sheet to the smoke box and then to rivet the 0 to the accompanying drawings, forming a smoke box to the forward extremity of the part of this specification, in which like letextension A. The back plate, fire-box, and ters indicate corresponding parts in both the fire-fine are then secured together and inviews. sorted from the rear opening in the casingor Figure 1 is a longitudinal vertical section shell A. It is then necessary to secure to- 35 of my improved boiler, and Fig. 2 is an end gether the end of the fire-flue to the flueelevation h f sheet G, and as it is impossible to rivet these My boiler is particularly an improvement parts the only way to secure them together is upon that previously patented to GeorgeA. by means of bolts. This bolting is a feature Porter, dated December 22,1885,No. 332,828; of great disadvantage, since it is extremely o 40 and it consists, especially, in the novel condifficult to obtain as tight a joint b means struction of the smoke-box and boiler extenof bolts as by rivets, as the rivets upon sion, whereby the smoke-box is adapted to be tracting tightly draw the parts together. inserted from the rear of the boiler, elfect a Moreover, the bolting requires consid bl tight joint with the boiler-extension, and intime, anda consequent expense for labor. 9 5 5 suring very quick heating by reason of the By my invention the rear plate B, fir -b number of fines which may be inserted into D, fire-flue F, flue-sheet G, and smoke-box H the crown-sheet at the rearward enlarged end are all secured or riveted together before beof said conical smoke-box. ing secured in operative position on the into- A represents the outer boiler shell or casrior of the shellA and the extension A. As Ioo 5o ing, formed of suitable size or material and these parts are all secured together b f provided with the forward eXtensionA, which their placing wlthin the shell A, they a preferably riveted by an ordinary rivetingmachine in order to still further cheapen and quicken the production of the boiler.

13y securing the fire-flue F to the fine-sheet before they are placed within the boiler-shell I am enabled to calk the flue F from the outside, thus effecting an absolutely tight joint with the flue-sheet. In the boiler before mentioned of G. A. Porter it was impossible to calk the fire-flue, and consequently there has always been more or less leaking at its jointwith the flue-sheet.

The placing of the interior parts of the boiler within the outer shell or casing'is a very simple matter, since'the smoke-box by reason of its peculiar construction is of less diameter than the extension A, and is also of less diameter at its forward end than at its rearward end. The shell is sustained in the desiredposition and the interior parts of the boiler are grasped by a crane or other suitaable elevating device, and when raised to the right height are forced inward.

The forward extremity of the smoke-box is readily forced to the desired position in the contracted opening of the boiler by reason of the tapering or conical shape of said box and opening, and when forced to the desired position the parts are then riveted together and preferably by a riveting-machine.v

The metal forming the contracted opening of the boiler preferably inclines rearwardly therefrom, in order to effect a tighter joint with the conical-shaped box, and it will be understood that by using a conical-sh aped smoke-box with its'small end at the front the entrance thereof is very readily accomplished, even though, as illustrated, the rearward end is of slightly less diameter than the interior of said boiler-extension.

To further cheapen the cost of production of the boiler and lessen the time and skill required in constructing the same,I frequently prefer to secure the flues in their position before the securing of the interior parts within the boiler shell or casing; I

It will be evident that a boiler constructed according to my invention is cheaply and readily put together, and that the same is also more effective in use. It will also be seen that the smoke-box of my improved boiler requires no bending, and that the same is thus very strong, and there are thus no thin spots to burn out.

In the flange a of the boiler-extension A, I provide openings a, which, while they may be of any suitable form or construction, are here shown as ordinary round openings, closed with 'a plug a These openings enable the attendant to insert a brush or other cleaning tool in the water-space of the boiler and thoroughlyclean the same. It will be understood that more of these openings may be used than are illustrated, and it will also be understood that by forming these openings in the said flange a it is not necessary, in order to open these cleaning-apertures, to remove the cover H, which closes the forward extremity ofthe smoke-box II.

The operation of my invention will be readily perceived from the foregoing, and it will be understood thatI do not claim a smokebox having one portion thereof conical shaped and the other portion circular-shaped, since I am aware that smoke-boxes of this construction have been previously illustrated and described. 7

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a boiler, the combination of a boiler-extension A, having the material of its outer extremity bent inward and forming a contracted opening, with the adjacent metal thereof conically inclined rearwardly therefrom, and a conical smoke-box adapted to be inserted from the rear of said boiler ,and

formed with its rearward end of slightly less 7 diameter than the interior of the boiler, whereby a great number of flues may be connected therewith, and formed with its smaller end at the front, whereby its insertion is greatly aided, said forward end of the smokebox inclining in substantially the same angle asthe metal of said contracted opening, whereby a tight joint is effected, substantially as and for the purpose set forth.

In testimony whereof I have hereunto signed my name, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 18th day of June, 1889.

WILLIAM J. RANTON.

Witnesses:

CLARK H. NORTON, A. E. PARSONS. 

